FARS and NASS have merged into GES.

To start.

"In order for a crash to be eligible for the GES sample a police accident report (PAR) must be completed, it must involve at least one motor vehicle traveling on a traffic way, and the result must be property damage, injury, or death."

Follow up things to consider. What is threshold of property damage value where a PAR must be completed? (Varies by jurisdiction.) What is the threshold of injury where a PAR must be completed? (Varies by jurisdiction.)

What is injury that rolls up into the report that you cited? (It excludes possible injury, and believe it or not a "momentary loss of consciousness" and "limps" are possible injuries.)

So, how much does that effect your numerator?

-mr. bill